Receiver Address Field for Multi-User Transmissions in WLAN Systems

2. The wireless device of claim 1, wherein the first address field corresponds to a transmitter address field and the second address field corresponds to a receiver address field.

3. The wireless device of claim 2, wherein the first type of the downlink frame is a multi-user request-to-send (MU-RTS) frame eliciting clear-to-send (CTS) frames from the plurality of stations.

4. The wireless device of claim 3, wherein when the downlink frame is the first type, the uplink frame is a CTS frame, such that the receiver address field of the CTS frame is set equal to the transmitter address field of the MU-RTS frame.

5. The wireless device of claim 2, wherein the second type of the downlink frame is a trigger frame eliciting data frames from the plurality of stations.

6. The wireless device of claim 5, wherein when the downlink frame is the second type, the uplink frame is a data frame, such that the receiver address field of the data frame is set equal to a basic service set (BSS) identifier associated with the access point.

7. The wireless device of claim 1, wherein the uplink frame includes an indication on whether one or more frames in an aggregated media access control protocol data unit (A-MPDU) of the uplink frame are allowed to solicit an immediate response.

8. The wireless device of claim 1, wherein, when the downlink frame is a multi-user block acknowledgement request (MU-BAR) frame eliciting block acknowledgement frames from the plurality of stations, one or more frames in an aggregated media access control protocol data unit (A-MPDU) of the uplink frame are disallowed to solicit an immediate response.

9. The wireless device of claim 1, wherein, when a type of the downlink frame is a multi-user beamforming report poll frame eliciting beamforming report frames from the plurality of stations, one or more frames in an aggregated media access control protocol data unit (A-MPDU) of the uplink frame are disallowed to solicit an immediate response.

11. The method of claim 10, wherein the first address field corresponds to a transmitter address field and the second address field corresponds to a receiver address field.

12. The method of claim 11, wherein the first type of the downlink frame is a multi-user request-to-send (MU-RTS) frame eliciting clear-to-send (CTS) frames from the plurality of stations.

13. The method of claim 12, wherein when the downlink frame is the first type, the uplink frame is a CTS frame, such that the receiver address field of the CTS frame is set equal to the transmitter address field of the MU-RTS frame.

14. The method of claim 11, wherein the second type of the downlink frame is a trigger frame eliciting data frames from the plurality of stations.

15. The method of claim 14, wherein when the downlink frame is the second type, the uplink frame is a data frame, such that the receiver address field of the data frame is set equal to a basic service set (BSS) identifier associated with the access point.

17. The non-transitory machine readable medium of claim 16, wherein the first address field corresponds to a transmitter address field and the second address field corresponds to a receiver address field.

20. The non-transitory machine readable medium of claim 16, wherein the uplink frame includes an indication on whether one or more frames in an aggregated media access control protocol data unit (A-MPDU) of the uplink frame are allowed to solicit an immediate response.